/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.solr.analysis;

import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
*
* @version $Id: BaseCharFilterFactory.java 890798 2009-12-15 14:13:59Z koji $
* @since Solr 1.4
*
*/
public abstract class BaseCharFilterFactory implements CharFilterFactory {

  public static final Logger log = LoggerFactory.getLogger(BaseCharFilterFactory.class);

  /** The init args */
  protected Map<String,String> args;

  public Map<String, String> getArgs() {
    return args;
  }

  public void init(Map<String, String> args) {
    this.args = args;
  }

  protected int getInt(String name) {
    return getInt(name,-1,false);
  }

  protected int getInt(String name, int defaultVal) {
    return getInt(name,defaultVal,true);
  }

  protected int getInt(String name, int defaultVal, boolean useDefault) {
    String s = args.get(name);
    if (s==null) {
      if (useDefault) return defaultVal;
      throw new RuntimeException("Configuration Error: missing parameter '" + name + "'");
    }
    return Integer.parseInt(s);
  }
}
